Tech Projects

We had choice of either Edelbrock Performer RPM or Mopar Performance aluminum cylinder heads. Both feature 84cc combustion chambers, 210cc intake/70cc exhaust ports, 2.140 inch intake/1.810 inch exhaust valves, and valve springs that support up to .600 inch of valve lift. Since we only had time to dyno one set of heads, we opted for the Edelbrocks.  The heads were test fitted and checked for both piston-to-chamber quench and piston-to-valve clearance. Piston to quench (factoring in the MLS head gaskets) checked at 0.075 inch. Valve clearance was 0.250 inch intake and 0.270 inch exhaust.
Tech / Tech Projects

Mopar 499 Street Thumper (Part 3): Cylinder Heads, Valvetrain & External Parts

Editor’s Note: Mike Mavrigian has been building and writing about engines almost as long as there has been internal combustion. Mike’s shop, Birchwood Automotive, specializes in street performance and racing […]

Here’s our engine and transmission assembly mounted to the car with the radiator, AC condenser, accessories, and headers in place.
Tech / Tech Projects

Project Thunderbolt LS Miata (Part 6): Clutch Install and Final Test Fit

Welcome to Part Six of Project Thunderbolt, our LS Miata swapfest. In this update, we’re ready to mate the Chevrolet Performance LS376/525 engine with the Tremec T56 Magnum six-speed for […]

The Chevrolet Performance CTS-V Accessory Drive System provides a compact, OEM-engineered way to install air conditioning, power steering, an alternator, and the water pump on our LS3. From the thorough instructions to the labeled hardware, the Chevy Performance kit was easy to install and the fit was factory perfect.
Tech / Tech Projects

Project Thunderbolt LS3 V8 Miata (Part 5): Engine Goodies, Cooling, and More

There is a lot happening in this episode of our LS Miata swap. First, we installed the Chevrolet Performance CTS-V Accessory Drive System on our LS3.  This impressive kit includes […]

The rowdy Chevrolet Performance LS376/525 is one step closer to its home in the Mazdaspeed Miata!
Featured Vehicles / Tech / Tech Projects

Project Thunderbolt LS3 V8 Miata (Part 4): Rear End, Engine Prep—and the Transmission Arrives

Let’s jump right in and see what’s happening in this episode of our Miata makeover: We welded thick reinforcement braces in the engine bay. These braces are designed to add […]

After looking for months for a 1980-1985 Bronco with a V8 and a 4 speed manual, Sorger just about gave up finding one. “I mentioned to my daughter Shelby what I was looking for, she said that her and her husband had one they would sell me,” Sorger said.  The Bronco is 1984 Custom with a 302, a four-speed, and an NP235 transfer case. Dig the snazzy steps.
Tech / Tech Projects

Desert Bronco: Building a Full Size Bronco for Off-Road Racing

The first-generation (1966-77) Ford Bronco has been a popular off-road vehicle since its introduction. However its successor, the 1978-96 full-size Bronco, outsold it by a large margin. Designed to directly […]

Mopar 499 Street Thumper (Part 2): Step-by-Step Short Block Assembly
Tech / Tech Projects

Mopar 499 Street Thumper (Part 2): Step-by-Step Short Block Assembly

Editor’s Note: Mike Mavrigian has been building engines almost as long as there has been internal combustion. Mike’s shop, Birchwood Automotive, specializes in street performance and racing engines and vehicle restoration. As […]

Watch Live as a Corvette Gets Transformed During Ridetech’s 48-Hour Corvette Build
Car Culture & Entertainment / News & Car Culture / Tech / Tech Projects

Watch Live as a Corvette Gets Transformed During Ridetech’s 48-Hour Corvette Build

Update, Friday, March 13: You know how these things go. The Ridetech crew has been hard at work transforming a 1972 Corvette into a road race and autocross monster for the […]

Looks like it belongs in there, doesn’t it? This is a very encouraging step, but there is still a ton of work to be done.
Tech / Tech Projects

Project Thunderbolt LS3 V8 Miata (Part 3): The Engine Arrives and Surgery Begins

You already know we’ve chosen the powerful and compact LS3 for this build, but which LS3? We went right to the top and got the LS376/525 crate engine. It’s the […]

Big Block Blueprint: Duplicating Kiwi Customs’ Ford 557 Budget Big Block
Tech / Tech Projects

Big Block Blueprint: Duplicating Kiwi Customs’ Ford 557 Budget Big Block

What’s in a name? In the case of Kiwi Classics and Customs‘ KSV9000 Mustang, there are 557 cubic inches packed into the name. The KSV9000 Mustang got its name from […]

Removing the dash is necessary to make our firewall and tunnel modifications. With the dash out of the way, removing the wiring harness, pedal assembly, and pretty much everything else will be much easier.
Tech / Tech Projects

Project Thunderbolt LS3 V8 Miata (Part 2): Completing the Teardown and Breakdown

In part one of Project Thunderbolt, we laid out the plans to stuff a GM LS3 V8 in to a 2004 Mazdaspeed Miata. In this update we’re finishing the teardown […]